Improvement in machines for making weavers  harness



2Sheets--S heetl. J. H. CROWELL. Machines for Making Weavers Harness.

No.l52,465. Patentedlun e30,1874.

FICnh WITNESSES.

INVENTOR- 2 Sheets--Sheet 2.

1. H. GROWELL.

Machines for Making Weavers Harness.

VA Patentedjune 30,1874.

INVENTUH r FlCuSn WITNESSES.

f? g 6 9mm UNITED STATES PATENT OFFICE.

JOHN OROWELL, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO THE KENDRIOK LOOM-HARNESS COMPANY, OF SAME PLACE.

IMPROVEMENT IN MACHINES FOR MAKING WEAVERS HARNESS.

Specification forming part of Letters Patent No. 152,465., dated June 30, 1874; application filed January 23, 1874.

- drawings making a part of the same, is a full,

clear, and exact description thereof.

The object of my invention is to produce a machine which shall automatically make that description of loom-harness in which the eyes are formed by clasping two metallic bands at the requisite distance apart around the two contiguous twines which constitute the respective heddles of harness, as distinguished from thosedescriptionsofloom-harnessinwhich twines which constitute theheddles are knotted or otherwise concatenated to form the eyes.

My machine comprehends devices for laying two twines alternately across from side band to side band of the harness in successive convolutions, and, also, in combination therewith, devices for supplying the machine with wires suitable for the two clasps for each heddle, for cutting off the same into suitable lengths to form the clasps, for partially shaping the same, for inserting the heddle-twine in the partially-formed clasps, and for finally closing the clasps firmly upon the heddles. A special means, peculiar to the machine, is exhibited for selecting the leese of the harness.

In connection with these devices referred to for performing the above-named operations, there is also employed means which are common to other harness-making machines for crocheting the several heddles to the side bands, and for carrying along the harness as fast as each heddle is formed.

Figure l is a side elevation of my improved machine. Fig. 2 is a plan view. Figs. 3, 4, and 5 are enlarged perspective views of the cutters, formers, and dies, showing the manner of attaching the metal to the heddle-twines. Fig. 6 exhibits a heddle-eye.

A represents a base plate or platform, to which are suitably secured the columns B B B B, which, at their top ends, are attached to the circular plate D, Fig. 2. These two plates A and D are used for supporting the operating mechanism of the machine. The two twines m m,'to form the heddles, are carried by two spools, n n, mounted on two spool-stands, 0 0 which are constructed in any convenient form that will enable the twines to be given off from the spools. The spool-stands 0 0 are attached to the top of a crown gear-wheel, E, which revolves around the circular plate D. Motion is imparted to the crown gear-wheel E by a gear-wheel, F, on the primary shaft G, which latter is supported in the bearings H II, and receives motion from any competent prime mover. The two twines f f, for binding or securing the heddles as they are successively formed to the bands, are carried by two .spools, p 19, mounted on spool-stands q g, which are re volved around studs 1' 2" once during the formation of each heddle by means of the bevelgear wheels llengaging with the bevel pinion-gears i W, which latter are attached to the shaft I, which, in turn, is connected by gear-wheels J J to the primary shaft G. The two bands 0* 1', Fig. 1, of the harness are taken from spools, and led thence under friction pressure-springs, through hollow vertical studs M and, finally, made fast to a sliding bar above the machine, adapted to slide on a vertical standard in a manner similar to that described in the drawings and specifications of Lettc rs Patent issued January 2, 1855, to one Joseph S. Winsor, and numbered 12,175. In the present instance, to avoid confusion in the drawings, the spools for the bands are not shown; neither is the sliding bar for the side bands represented. As theheddles are formed in succession and secured tothe bands, they are to be supposed to be drawn upward by the upward movement of the bar to which the bands are secured, and over the ends of the two rods 8 s, Fig. 1, whose offices are to preserve the leese of the harness. These two rods 8 s are located in the central vertical plane of the machine, with their upper ends attached to an adjustable arm. The lower end of the rod s'is pointed, and has its point situated in the horizontal plane, and at the right of the top of the stud c the lower end of the rod 8 is situated below the horizontal plane, and at the left of the top of stud 1 vertical plane through the studs t t.

c c, Fig. 2, represent two pinchers or gi'ip-' ing-fin'gers, located one at the right and the other at the left of table "K, whose'office is to draw th e heddl e twines down into the ru dimentary heddle-elasps, hereafter to be referred to, and there hold them until the operation of closing the said heddle elasps around the heddle-twines is accomplished. These pinchers have an intermittently vertically-reeiprocating movement given to them by means of the cams L L, Fig. 1, secured to the shaft I. The return movement of the said pinchers c c is effected by the recoil of spiral springs 2 2. In addition to the intermittent reciprocal movement given to the pincher c, it also receives an oscillatory movement, which causes the heddles, as they are successively finished, to be disposed alternately upon each side of the rod 8. This movement is effected by means of the cam L Fig. 1, actuating the lever L which latter is attached to the stock which holds the nipper c, and thus is produced what is known as the leese in the harness.

The two wires (1 d, to form the elasps at the ends of the eyes of the heddles, are carried by two spools, z 2, Fig. l, mounted on a horizontal rod, the ends of which are supported in the standards 2 z. e e represent a pair of rolls for feeding the wires (1 d to the cutters, and which have an intermittently rotary movement communicated to them by means of a ratchet, 3, pivoted to the bar 4, which latter is connected to lever 5, Fig. 1., bearing on the cam l\[, which is secured to the shaft 1.

7: represents a former, having its lower edge convex, and which, in connection with a corresponding concave die made in the end of vertical wire-cutter m, is for the purpose of shaping the wire blanks for the heddle-elasps into the form of a semicircle. The said former 7: is at the end of and at right angles to the vertical bar 71, arranged in the central vertical plane of the machine, and which bar is actuated vertically and horizontally by means of the cam \V, Fig. 1, in combination with two spiral springs arranged at right angles to each other, one of which is shown at j, Fig. 3. The cutter m is arranged in the vertical center of the machine, and has vertical intermittent movement communicated to it by means of a cam-shaped flange attached to the cam M.

4;, Figs. 3 and 4, represents a stationary wire holder and guide for guiding and holding the-wire in the proper place while being cut oh by the wire-cutter :v.

N N are slides arranged in guides 011 the top of the table K, and at right angles to a The inside ends of the slides N N, Fig. 2, are, respectively, provided with sets of dies a a and c a, the offices which the said dies perform being, first, that of holding the rudimentary heddle-elasps during the operation of having the heddle-twines placed into them, and, second, that of closing the said elasps around respective sets of dies, have an intermittently by means of T2 T2. I

The arm to which the side bands are to be the cams t t, Fig. 1, and levers the guide and holder 17, to the cutter a c.

The rollers 2 2 now feed the wires'd 01 through the guide and holder 1), so that they project from the said holder the required length for the heddle-elasps. The former k then takes a position directly over and nearly in contact withthe projecting wires. The cutter so next the projecting wires it brings them into con tact with the former 7.1, which, in combination with the cutter 00, in its continued cutting movement, crimps the wires into the form of semicircles. These wires are now ready to receive the heddle twines, as shown in Fig. 3. The (lies a a a a then move simultaneously up to the rudimentary elasps, and hold them in the position shown at Figs. 4 and 5, during which operation the nippers c c are made to rise and take hold of the heddle-twines m m, which have been given off from the spools a n as the latter were revolved with the crowngear E, which has made half a complete revolution, so that at this moment the said twines are in close contact throughout their extent across the machine, and each twine is in contact with the opposite band to which it was last attached. The nippers now draw the two twines m m, constituting one heddle, into the partly-formed elasps, as shown at Fig. 4.. The dies at a a to simultaneously continue the motion which brought them in position to hold the rudimentary elasps, and close the said rudimentary elasps around the heddle-twines m m, as shown in Fi 5.

The next operation of the machine is to se cure the heddle-twines as they continue to be held by the nippers to the bands r r by means of the binding-twines ff. This is accom plished in the same manner as that shown in the Letters Patent granted to me for improvement in harness-machines, December 9, 187 3. This last operation of securing the heddletwines completes the construction of the heddle, which is still held by the nippers 0 c. The nipper c is then made to oscillate either to the front or rear of the rod 8, after which the two nippers let go of the heddle, which operation will cause the two twines forming the heddle-twines. The slides N N, with their reciprocatin g movem ent comm nnicated to them attached having been moved to a position just above the plane where the heddles are i z z, and up between the feedrolls z z ,'and thence, through the table K, to and through moves upward, and having partially cutoff each heddle to be deposited at one end on one side of the corresponding red 8, and at the other end on each side of the other rod 8.

The heddles, as they are formed, are taken out of the plane in which they are formed by the upward movement of the sliding bar to which the bands 1' r are attached, which upward movement is effected by a sliding bar in a well-understood way.

I do not limit myself to the precise construction and arrangement of the several devices described, but I mean to include all "ariations of form and arrangement which perform the same mode of operation by equivalent means.

That I claim as my invention, and desire to secure by Letters Patent, is

1. The revolving annulus E, furnished with the spool-stands 0 o, in combination with the spoolsn n, for carrying the heddle-twines, with suitable devices, as described, for crocheting or otherwise attaching the heddles to the side bands of the harness, whereby the twines to form the heddles of the harness are laid in regular successive con volutions, substantially as specified.

2. In combination with suitable heddle-fornr ing mechanism, the feeding-rollers e the cutter w, the crimper It, and the dies to a, the same being, respectively, for feeding forward the wires to form the clasps; for cutting the same into proper lengths; for crimping the wires to cut into rudimentary clasps; for holding the latter while the heddle-twines are inserted; and, finally, for closing the clasps upon the twines, substantially as set forth.

3. The crimping-bar h k, arranged to more in vertical and horizontal planes, in'combination with a vertically-movin g cutter for crimping the wires into shape to secure the heddletwines, and then retreating out of the path of the devices subsequently employed, to insert the heddle -t wines in the partially formed clasps, and close the latter upon the twines, substantially as described.

4. The pinchers c c, in combination with the dies to a, for inserting the heddle-twines into the partially-formed clasps, as described.

The oscillating pincher c, in combination with the leese-rod s, for selecting the leese of the harness, substantiallyas described.

JOHN H. OROWELL.

Witnesses J. H. KENDRIOK, E. P. DANIELS. 

